Quetch



Jan. 9 1934.

KOCH

QUETCH Filed Sept. 24, 1951 2 Sheets-Sheet l INVENTOR, M I ZZL eZm Kath,

. BY HIS ATTORN Jan. 9, 1934. w, J K H 1,942,605

QUETCH Filed Sept. 24. 1951 2 Sheets-Sheet 2 INVENTOR, L'Zliam flock,

BY ms ATTOR Patented Jan. 9, 1934 PATEN *Q F' -CE v QUETCH William J. Koch, Midland 'Park, N."J., assignor to Van 'Vlaanderen Machine Company, Paterson, N. J afcorporation of New Jersey Application September. 24, 1931. Serial No. 564,834

This invention relates to apparatus, known as a quetch, in which fabric or other porous sheet material is treatedwith sizing liquid, or size, by pressing it between two revolving rolls, one of which has the size applied to it, usually by dipping into a body of size in a suitable container. When the lacing or entering of the fabric between the rolls is effected they are usually separated. My invention contemplates in part an improvementwhereby this and also the desired pressure exerted by oneroll toward the other when they are compressing and sizing the cloth are accomplished. llliheri separation of the rolls is effected it is desirable in any event, but especially if the rotation of the rolls" isalso stopped, todiscontinue the dipping of I the roll which transfers the size to the fabric. Wherefore my invention further contemplates constructing themechanism so that the act of separating the rolls shall result in removing the size-applying means from the size-transfer roll.

It'is found that the motion of a roll which dips into the size causes the latter to foam and that this foam spills from the container and produces an untidy condition about the machine and that-this foam, with scum, forms as'a top layer on the size and is not only likely to reach the cloth and cause spotting or staining thereof but that it conceals the size so that the'actual level of the size and hence its quantity is not apparent, with the possibility that the machine may be operatedwithout size and the fabric injured or required to be re-treated in the machine. The invention therefore further contemplates constructing the machine so that the foam as fast as it is formed is directed away and permanently isolated from the main body of-the size.

In the drawings, 'Fig. 1 is a side elevation of the improved quetch;

"Fig. 2 shows the size container in longitudinal'section, with the lower roll (in-outline) dipping into the size;

- Fig. 3 is a section on line 3-3, Fig. 2; and

Fig. 4 shows in front elevation a detail of Fig. 1.

In the frame 1 are the coactive cloth-pressing elements comprising the lower pressure roll 2' and two levers 3 fulcrumed in the frame and the upper pressure roll 4 journaled in such levers;

revoluble beam 10-and iswound up on the receiving beam ll driven through an endless belta'nd pulley connection 12 from roll 2. So much is well known.

In the frame below the rolls is what I terma load structure movable up and down and here' comprising two opposed levers 13 fulcrumedat 13a in the frame and carrying weighting means- 14 and forming the body member of such structure, which latter also comprises two opposedr cranks 16 having pivots 16a. and oscillatory in the body member around a horizontal axis, as that of shaft 15'to which the cranks are afiixed and which is here journaled in the levers and also forms a part of the load structure. A pair of opposed links 17 are connected to the pivots 3a to articulate thereon anddepend therefrom, being also connected tothe pivots 16a to articulate thereon. At 13 is a stop on which the load structure maycome to rest, i. e., when the pressure element 3-4 is elevated. When the cranks arturned anti-clockwise to the position shown the upper pressure element is first allowed to fall to rest on the lower one and then, this movement being continued, the cranks now cause the load structure of which they form a part to rise, thus imposing the-weight of the load structure on the upper pressure element, such movement also resulting in pivot 16apassing (under shaft 15) beyond a straight line connecting pivot 30, and the axis of the cranks, and the links coming to abut the load structure, as against its shaft 15, thus leaving the parts releasably locked in this state. When the cranks are turned back, and during their ensuinghalf-revolution, the motion results in the links first permitting the load structure to fall and abut stop 18 and then elevating the upper pressure element clear of the lower one, pivot 7 16a again passing the mentioned line and the links again abutting the load structure (at 15) and 'leaving the parts again releasably locked in or less near the lower pressure roll 2. This shaft has a crank-like handle 20 and it and shaft 15 are connected to rotate together back and forth by an endless chain 21 engaging sprocket-wheels 22, 23 on these shafts.

Thesize pan or container 24 (which maybe charged through afunnel 29) has depending side legs 24a each slotted to receive and thus be guided for vertical movability by shaft 19 and a stud 25 on the frame, and it also has at each side a roller 26 which, by resting on an eccentric cam Won the shaft, supports this container. Each cam is so positioned on the shaft that when through the links the load structure is holding roll 4 pressed against roll 2 the container is elevated so that the latter roll dips into the size in the container; and when the loadstructure rests at 18 and the links are holding roll 4 elevated the.

container will have descended to clear the size from roll 2. Thus, whenever for any purpose, roll 4 being elevated, the intended sizing operation (to wit, with compression of the cloth) is not going on, the size will then be removed from roll'2 so that the latter will not become gummed or unduly coated with the size.

So far as I am aware it is broadly newto provide in machines. of this class, in combination, a revoluble pressure roll and another revoluble pressure roll movable into and out of pressure relation to the first roll, a size-applying means (as the container) movable into and out of sizeapplying relation to one. of such rolls, and mechanism (here, by way of example, parts 3, 17, the load structure, the cam and the sprocket-andchain connection between the cam and the crank-carrying shaft 15 of the load structure) controlling said movable roll and means and movable to establish them simultaneously in or simultaneously out of the positions where the former presses against the other roll and the latter applies size to one of such rolls.

Again, given a machine of this class having a revoluble pressure roll, back-and-forth-movable means (as the levers 3, links and load structure) including a revoluble pressure roll (as 4) and movable in one direction to cause its rollto exert pressure on the first roll and in the opposite direction to relieve such pressure, and size-applying means movable back and forth into and out of size-applying relation to one such roll, itis new to provide means (as the cam and sprocketand-chain connection) to move back and forth the first two means in synchrony.

It is also new, given a machine having said pressure roll and said back-and-forth-movable means and back-and-forth-movable size-applying means, to provide toggle-including means (the toggle being here afforded by the links and cranks) to move the first two means back and forth in synchrony and when they are at one of their limits of motion releasably lock them against return.

Container 24, is divided by an upstanding barrier 28, removed from the uptake (here theright) side of roll 2, the compartment at the left thereof (into which roll 2 depends) containing the size,

whose level is maintainedslightly below the top of the barrier, and the compartment at the right forming a drain and having for this purpose its bottom sloping toward the outlet 30 provided with a stop-cock 31. The rotation of the roll in the size causes, as stated, undesired foaming thereof, but when the container is constructed as thus described this foam is impelled by roll 2 as fast as it is formed over the barrier and escapes by the drain so that the mentioned disadvantages attending the presence of the foam' Having thus fully described my invention, what I claim is:

l. A machine of the class described comprising supporting means, superposed pressure elements therein one of which is movable up and down and normally bears against the other and has a pivot, a link connected with and depending from said pivot, an up-and-down-movable load structure vated above the stop, and, when the crankis turned back'and during the ensuing half-revolution thereof, being adapted to first permit the load structure to fall and abut the stop and then move the first from the other pressure element. 7

2. A quetch comprising a frame, a revoluble pressure roll arranged in the frame, another pressure roll movable in the frame into and out of pressure relation to the first roll, a size-applying means movable in the frame into and out of size-applying relation to one such roll, and mechanism controlling said movable roll and means and movable to establish them simultaneously in or simultaneously out of the positions where the former presses against the other roll and the latterapplies size to one roll.

3. A quetch comprising a frame, a lower revoluble pressure roll, a pressure element includingan upper revoluble pressure roll and movable up and down respectively to shift such roll from and into pressure relation tothe lower roll, a size-applying means under the lower roll and movable up and down respectively into and out of size-applying relation to said lower roll, and mechanism controlling said element and means and movable to establish them simultaneously in or simul-:

forth-movable means including a revoluble pres sure roll and movable in the frame in one direction to cause such roll to exert pressure onthe.

first roll and in the opposite direction to relieve such pressure, size-applying means movable in the frame backand forth into and out of -sizeapplying relation to one such. roll, and rotary means to move the first two means back and forth in synchrony. q 1

5. A quetch comprising a frame, a .revoluble pressure roll arranged in the frame, back-andforth-movable means includinga revoluble pressure roll and movable in the frame in one-direction to cause such roll to exert pressure on the first roll and in the opposite direction to relieve such pressure, size-applying means movable in the frame back and forth into and out, of sizeapplying relation to one such roll, and toggleincluding means to move the first two means back and forth in synchrony and when theyare .at one of their limits of motion releasably lock them against return. 1

- WILLIAM J. KOCH. 

